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你一定见到过从云朵缝隙中洒下阳光的壮美景色,这就是云隙光,它看起来有点像神仙下凡的特效。虽然并不能真的带来神仙,但云隙光却带着一个重大的秘密——它证明了我们的空气是胶体。这里所说的“胶体”并不像胶水那样黏黏糊糊。它是均匀且稳定的特殊混合物的代号!知果在水里撒一把土,那么水和土并不互溶,它们是悬浊液。用光束照射,只有部分颗粒反射了光。把一把盐撒在水里,会慢慢溶解,这是溶液。用光束照射依然无效。用光束照射稀释的牛奶,在比较暗的环境下观察,沿着光束的方向,牛奶中出现一条淡淡的亮光。牛奶是一种胶体。空气与灰尘也组成了气态胶体.茶色的水晶是一种固态的胶体。想知道你周围的物质是不是胶体,用手电光束照一照是唯一的方法!
You must have seen the spectacular scenery that sprinkled the sunlight from the crevices of the clouds. This is the crevice. It looks a bit like the special effects of immortals. Although it does not really bring gods, the glittering light carries a major secret - it proves that our air is colloidal. The “glue” mentioned here is not as sticky as glue. It is a uniform and stable mixture of special code! Knowing fruit in the water sprinkle a soil, then water and soil are not mutually soluble, they are suspensions. With the light beam, only part of the particles reflect the light. Sprinkle a salt in the water and slowly dissolve, which is solution. Irradiation with a beam is still ineffective. Dilute the diluted milk with a light beam and observe it in a dark environment. A faint light appears in the milk along the beam direction. Milk is a colloid. Air and dust also form a gaseous colloid, and the brown crystal is a solid colloid. Wondering if the substances around you are colloidal, using the flashlight to take a photo is the only way!